background: leishmaniasis is a widespread problem, especially in the tropical and subtropical countries. since understanding epidemiologic and geographical distribution of the diseases is necessary for prevention and control of leishmaniasis. this study was conducted for epidemiological survey of cutaneous leishmaniasis in north khorasan province, using gis during the years 2006-2013.methods: i...

introduction: equity in health means justice in the distribution of community health. the purpose of justice in health is to consider health needs of all people regardless of their geographical location or cultural, economic, and social status. the aim of this study was to assess distribution of specialists based on population (100,000 people) in public hospitals of iranian provinces during 201...

purpose : to investigate the validity of pentacam derived parameters like corneal volume distribution and percentage increase in volume in differentiation of mild to moderate keratoconus from normal corneas methods : forty eyes with mild to moderate keratoconus and 200 normal eyes were studied by pentacam. corneal volume was calculated within diameters from 1.0 to 7.0 mm with 0.5 mm steps cente...

background: scorpions are known as the most widespread poisonous creatures that cause casualties and death to human. they are distributed in tropical and subtropical areas. among the sixteen iranian island in the persian gulf, qeshm island is the biggest and is located in the focus of the important internal and international commercial marinelines. furthermore, thousands of tourists also visit ...

the land-locked country of afghanistan has a restricted but relatively diverse ichthyofauna comprising 85 species in 10 families. the fauna is dominated by cyprinidae (50 species) and other ostariophysans (28 species). eight species are endemics to afghanistan within its political boundaries. there are three principal drainage basins: the endorheic amu darya draining to the aral sea with 29 spe...

due to the increasing interest on renewable sources in recent years, the studies on integration of distributed generation to the power grid have rapidly increased. in order to minimize line losses of power systems, it is crucially important to define the size and location of local generation to be placed. minimizing the losses in the system would bring two types of saving, in real life, one is ...

background: to enhance the dose to tumor, the use of high atomic number elements has been proposed. objective: the aim of this study is to investigate the effect of gold nanoparticle distribution on dose enhancement in tumor when the tumor is irradiated by typical monoenergetic x-ray beams by considering homogeneous and inhomogeneous distributions of gold nanoparticles (gnps) in the tumor. meth...

Many studies have considered a truncated and censored samples which are type-I, type-II and hybrid censoring scheme. The inverse Weibull distribution has been utilized for the analysis of life testing and reliability data. Also, this distribution is a very flexible distribution. The inverse Rayleigh distribution and inverse exponential distribution are a special case of the inverse Weibull dist...